Walt Mossberg: 'Why Does Siri Seem So Dumb?'

So why does Siri seem so dumb? Why are its talents so limited? Why does it stumble so often? When was the last time Siri delighted you with a satisfying and surprising answer or action? I have an answer for this: when I discovered during the NBA playoffs that Siri can tell you the Vegas betting odds for sporting events. In recent weeks, on multiple Apple devices, Siri has been unable to tell me the names of the major-party candidates for president and vice president of the United States.